Ticket #5693: spin-lock-trylock-EBUSY.patch

src/system/libroot/posix/pthread/pthread_spinlock.c

@@ -44 +44 @@
 pthread_spin_trylock(pthread_spinlock_t* lock)
 {
     if (atomic_test_and_set((int32*)&lock->lock, LOCKED, UNLOCKED) == LOCKED)
-        return EBUSY;
+        return -EBUSY;
     return 0;
 }